Form for concrete.



J. v. WESTERLUND. FORM FOR GONORETB. APPLIOATION FILED OCT. 28, 191,1.

1,040,075. Patented 00s. 1, 1912.

,0 By fla 1 a, :2: i

JOHN V. WESTER-LUND, OF SAN FRANCISCO, CALIFORNIA.

FORM FOR CONCRETE.

Specification of Letters Patent.

Application filed October 28. 1911.

Patented Oct. 1, 191.2.

Serial No. 657,304t.

To all whom it may concern:

' Be it known that I, JOHN V. \Vnsrnnnuun,

citizen of the United b) ates, residing in the city and county of SanFrancisco and State of California, have invented new and usefulImprovements in Forms for Concrete, of which the following is aspecificatimi.

This invention relates to a form for concrete construction andparticularly pertains to an adjustable mold for walls, floors and thelike.

It is the object of this invention to provide a form for moldingconcrete or other plastic materials which is adaptedit'or use in formingoutside walls, partition walls, floors, columns and other portions ofbuildings.

Another object is to provide a concrete form which is adjustable, andwhich can be assembled, taken down and reassembled, as desired, and becompactly stored whennot in use.

A further object is to provide a substitute for the wooden forms nowcommonly employed in concrete construction which is simple inconstruction, and economical in manufacture, and which-can be easily andquickly set up and taken down.

Other objects .will appear in the following. specification.

The invention consists of the parts and the combination and constructionof parts as hereinafter more fully described and claimed, havingreference to the accompanying drawings, in Whicl Figure 1 is a front'elei 'ation of a series of the mold elements in an assembled position.Fig. 2 is a section on the line X.X of Fig. 1. Fig. 3 is a detail inperspective showing the manner of assembling the mold. Fig. 4 is adetail of a modified form of the mold bracing. Fig. 5 is a detail-insection showingthe manner of locking superposed mold plates together.Fig. (3 is a detail m": a hook employed in tying the rail and bracemembers together. Fig. 7 is detail of the tang as struck from a plateforengaging the 'lower edge ofa plate arranged thereabove. Figs. 8 and 9show modified forms of the supporting brace members.

In the drawings A represents a flat plate which is preferably formedotsheet metal and rectangular in form. The plate A; has

its upper edge bent at right angles tofornii a flange 2 which is adaptedto rest on a horizontal bar 3 so as to support the plate A. in

a vertical position. The bar 3 provided with a series of perforations l,which are spaced approximately an .inch apart and extensions 5 areformed on the flange 2 which are perforated at (3 to register with theperlorations 4 in the bar The bar 3 is designed to bearrangedhorizontally; a series of these bars being arranged in parallel rows oneabove the other, when a wall or partition of considerable height is tobe erected, they are supported upon and spaced apart by means of strutsor braces 7 which are preferably disposed at an angle, though they maybe arranged vertic: .lly as shown in Figet where space will not admit ottheir being positioned. at an angle. The supports C have their ends bentto parallel the bar-s3, the bent portions being perforated at 8 whichperforations lire adapted to register with the perforations l in thebars The plates it and the bars and the supports 7 are cured together bymeans of loose pins 9 which are passed through the pert'o 'ations 8-tland 4t, as shown in. Fig. 6.

In the application of this invention, a series of the bars 3 arearranged on the line of the wall or partition to be built with theirends overlapping and connected to-- gethor by the pins 9. A number ofthe supports 7 are then placed thereon in alternate arrangement, asshown in Fig. 1 with their bent ends overlappin A second row of the bars3 is then placed ontheupper ends of the sup 'iorts 7 and. securedthereto by means of the pins 9. The plates A are then pended from thetop of the bars 3 shown in Fig. 3, the flanges resting on the bars 3,arul a second row of siflppmfts T with the bars 3 is then placedthereabove, as shown in Fig. 1, and the whole is coi'inected together bymeans ot the pins 9. as betorc described. This operation is repeateduntil the wall of the desired height is constructed;

parallel wall of the plates beingbuilt up in the manner ust describedand spaced from the first wall a distance equal the thick ness oi thewall to be cast tlierebetween. These parallel .walls of plates togetherwiththeir supportingbars 3, are tied to gether to prevent spreading, bymeans 0t tie bars 10 which are adapted to extend across the spacebetween the parallel walls of plates A and are connected with the bars 3at each end by n'ieans o'l the'pins 9; the bars 3 on each side beingdisposed on epproximately the same plane, a as shown in Fig. 2. l j vThe plates A on one row of the bars 3 overlap the plates suspended fromthe row of bars therebeneath and are notched at 11, so as. to passaround the tie bars 10, as shown in Fig. 3. As a means for preventingthe lower edge of the plates-A from moving away from the platetherebeneath, tangs 12 are struck from the plates near their upper edge,which tangs are adapted to engage the lower edge of the platethereabove, so as to connect the plates together, as shown in Fig. 5. Itis obvious that the plates A may be of various lengths and that whenthey are arranged on the bars 3 their ends may overlap any desired orsuitable distance. This arrangement admitsof a wall of any desiredlength being constructed with a series of lates A of fixed lengths sothat special plates do not have to be provided.

Asa means for preventing the sup orts 7 becoming displaced, a hook'13 isemp 0 ed as shown 111 Fig. 6 which hook is forme of flat bar metal andbent so as to pass over the end of a supportand under a bar 3 as shownin Fig. 3, in which position it is retained bymeans of a pin 9, and actsto tie the supports? to the bars 3. This construction obviates the useof nuts on the pins 9 and facilitates the setting up or taking down ofthe structure.

- From the foregoing itmy invention comprises a mold unit consisting ofa perforated bar, a plate adapted to be suspended from the bars, asupport for the bar, and means for connecting the bar, plate and supporttogether; a plurality of these mold units bein adapted to be set up andtemporarily tie together to form a mold of the desired shape into whichthe plastic materials to form the structure to be made, is poured in theusual manner; the bars 3 and the supports 7 forming a framework on whichthe plates A are carried.

It will be noted that in the set up mold, the plates A are on the insideofthe framework, so as to present a smooth, unbroken surface to face upthe cast materials. In forming intersecting walls or partitions, thebars 3 of one mold are connected to the bars of the other mold by meansof the pins 9, the end of one bar resting on the bar to which it is-.\ttached, and the plates A of one will be seen that 'mold are buttedagainst the adjacent plates.

Various arrangements and applications of this invention are possible byreason of the plates, bars and supporting members being adapted to beset up in many positions, so that almost every form of'mold employed inconcrete construction may be built from the sections or parts hereindescribed. The supporting members 7 may be formed in single units of thediagonal portions, as shown in Figs. 1 and 2, with-their cndsterminatingagainst the adjacent bars 3, or they may be formed of a number of thediagonal ortions connected together, or integral, as s iown in Figs. 8and 9, with perforated fiat portions 7 oining the alternately arrangeddiagonal portions together; this truss-like form of the supports 7insuring a rigid construction.

It will be understood that I am not to be limited to the exactconstruction and arrangement of parts as here shown, and to which theforegoing description has been mainly confined, as it is evi ent thatslight changes. might be made in the form of the several partsdescribed, without departing from the spirit and scope of my invention.0

Having thus described my'invention, what I'claim and desire to securebyLetters Patent is' 1. A knock-down concrete form consisting of a seriesof superposed horizontally disposed bars, plates suspended from saidbars, diagonal supporting members extending between the bars having opositc ends bent and arranged flatwise upon the bars, and remov ablemeans, for connecting the bars, plates and supporting members together.

2. A knock-down concrete form consisting of a series of superposedhorizontally disposed bars rovidcd with perforations, plates suspen edfrom said bars, diagonal supporting members arranged between the barsand across the plates from bar to bar, and removable means forconnecting the bars, plates and supporting members together, includingperforated flanges on the plates, perforated sections on thesupportingmembers and pins insertible in'thc per forations in the bars, flangesand plates when the perforations are in register.

3. A knock-down concrete form consisting of a series of superposedhorizontally disposed bars provided with perforations, plates suspendedfrom said bars, diagonal supporting members arranged between the barsand across the plates from bar to bar, 110 and removable means forconnecting the bars, plates and, supporting members together, includingperforated flanges on the plates, perforated sections on the supportingmembers, hooks arranged to engage the bar 1 and supporting members, andprovided with perforations, and pins inscrtiblc in th perforations insaid plates, bars, supports aiiil hooks, substantially as described.

4. A knock-down concrete form consisting 120 of a series of superposedhorizontally disposed bars provided with perforations, plates suspendedfrom said bars, diagonal supporting members arranged between the barsand across the plates and removable means for connecting the bars,plates and supporting members togcthcr, including perforated flanges onthe plates, perforated sections on the su 'iporting niembers, hooksarranged to engage the bar from bar to bar,

i and supporting members, and provided with my hand in the presence oftwo subscribing.

perforations, and pins insertible in the perwitnesses. forations in saidplates bars, supports and hooks, tie members attzichable to said bars,JOHN WESTERLUND' 5 and notches formed in said plates to admit Witnesses:of the tie members passing therethrough. E. T. J OHNSON,

ln festimony whereof I have hereunto set THARLES PETERSON.

